Knob mounting



. April 71-7, 1928. v f H. BROOMHALL KNOB MOUNT ING Filed April 16. 1926 gl'num I T01,

Patented Apr. 17, 1928.

UNITED, STA

TIES PATENT OFFICE.

HARLEY BROOMHALL, OE SHELBY, OHIO, ASSIGNOR TO THE SHELBY METAL'PROD UCTSCOMPANY, OF SHELBY, OHIO, A CORPORATION OF OHIO.

- I KNOB MOUNTING.

Application filed April 16, 1926. Serial 110/102,456.

This invention relates to an improvement in knob mounting, and means of making the same, whereby the knob mounting and knob are interlocked for rotative movement through theprovision of parts associated with and forming part of the knob mounting, and constructed wholly of sheet metal.

The construction involves the provision in sheet metal of the plate proper with which through beading step there is interlocked or associated an escutcheon ring,

while the knob formed of sheet metal is pro- 7 vided with and interlocked to a washer, designed to be rotatively associatedwith the escutcheon ring through a simple beading movement of such ring. Thus the construction largely involves the provision of a ring, which through a simple mechanical operation-is fixed to the knob mounting proper and serves to rotatively support the knob member without the use of visible or additional fastenings. I

The invention isillustrated in the accompanying drawings, in which:

Fig. 1 is a view in elevation of the escutcheon plate proper.

Fig. 2 is an elevation of theiescutcheon ring.

Fig. 3 is a vertical section of the same. Fig. 4- is an elevation of the plate with the ring applied. j

Fig. 5 is. a section on line 55 of Fig. 4. Fig. 6 is a rear elevation of the knob. Fig. 7 is a vertical section of the same. Fig. 8 is a vertical section through the interconnecting Washer.

Fig. 9 is a front elevation of the same. Fig. 10 is a vertical sectionalview through the knob, therewith. d Fig. 11 is a vertical sectional view through the complete assembly.

The escutcheon plate proper, indicated at 1, is made up of sheet metal appropriately stamped to provide an ornamental edge flange 2, screw holes 3 and a central-opening 4.. An escutcheon ring, as shown in Figs. 2 and 3, is constructed of sheet metal and formed to provide an inner ring extension 5 of asize to fit snugly Within the hole 4 in the escutcheon plate, and an outer ring ex-.

tension 6 of greater diameter than the in ner ring extension, these ring extensions being connected by an intermediate section 7' at right angles to the axis of the ring.

showing the washer associated- The knob to be associated with the escutch eon plate is constructed of sheet metal, stamped to provide a body 8 of appropriate form, slotted at 9 for die drawing purposes, the otherwise closedinner end beingformed with an opening 10. The body has a flaring edge 11 with which is associated a rounded or ornamental cap piece 12, the edge of which is beaded around the body edge 11 at 13, thus completing the knob.

An interconnecting washer completes the parts necessary to the assembly, this washer being shown more particularly in Figs. 8

and 9, and comprising a'circular plate 14 of a diameter corresponding to the interior diamcter of the ring extension 6 of the es cutcheon ring. The interconnectingwasher is formed with a non-circular aperture 15, the material cut from the Washer in stamping the aperture being turned out from the 16. p In assembling the parts, the escutcheonring is associated with the escutcheon plate by passing the ring extension 5 through the opening 4, andbeading the inner edge of such ring extension to embrace the edge of the opening, as, indicated at 17 in Fig. 5. The interconnecting washer is then asso ciated with the knob proper bypassing the prong 6 through the opening 10 and pressing washer plane in the form'of holding prongs said prongs on the inner side of the knob body bottom to thereby interlock the washer and knob as indicated at 18 in Fig. 10. Of course, the association of the interconnecting washer andknob is carried out priorto the application of the cap 12 to the knob body. As the diameter of the interconnect.

ing washer is somewhat greater than the adj acent end of the knob body, the washer presents anannular'projecting edge 19 at the inner end of the knob, and the washer is then seated withinthe ring extension 6 of the escutcheon ring and the projecting'portion of this ring extension is beaded over the flange projection of the washer asshown at 20 in Fig. 11. The non-circular opening 15 in the interconnecting washer is thus arranged in alignment with and centrally of the opening 4 in the escutcheon plate, and receives the usual connecting bar between the knobs indicated at 21.

It is to be particularly noted that all'parts are constructed of sheet metal, that the'knob is rotatively interlocked with the escutcheon plate through means involving a mere beading or spreading of a sheet metal part, With the entire avoidance of visible or auxiliary fastening means. The method permits a convenient and rapid assemblage of the parts into the desired unit through a simple spreading and clamping action of sheet metal parts, while at the same time permitting a convenient se 'iaration of such parts for the renewal of any defective part.

What is claimed as new, is:

An escutcheon plate and'knob assembly, comprising; a plate formed with an opening, a: ring member having an enlarged circular flange to overlie the plate and a reduced circular flange to fit Within said opening, the

reduced circular flange being of such dimension as to permit it to be headed over the inner side of the escutcheonplate, a knob, a Washer formed with a non-circular opening and having integral prongs for connecting the Washer to the knob, the diameter of said washer corresponding to theenlarged circular flange of the ring to permit the washer to be inserted within said flange, With the flange of a length tobe headed over to hold the Washer against other than rotativemove-' ment with respect to the rim.

In testimony whereof I affix my signature.

HARLEY BROOMHALL. 

